Vacuum-valve for steam-heating.



N. DOLESB. VAGUM VALVE FOR STEAM HEATING. APPLIOATION FILED JAN. 27, 1908.

Awn/EN ESSES l sNvENToR /uDoLEs/f,

Patented Oct. 6, 1908.

NICHOLAS DoLEsE, or lToEoNTo, ONTARIO, CANADA.

- VACUUM-,VALVE -vson STEAM-HEATING.

i Specification `of Letters Patent.

Patentea'oct. e, 1908.

Appneatiqn med January 27, 190s. serial No. 412,881.

To all whom 'it may concern.' f

Be it known that I, NICHOLAS DoLEsE,`of the city of Toronto, in the ycounty of York, in the Province of Ontario, Canada, have invented certain new and useful' Improve-- ments in Vacuum-Valves for Steam-Heating, of which the following is the specification.

My invention relates to improvements in Y vacuum valves for steam heating, and the object of the invention is to devise a vacuum valve for steam heating, which will not allow of any steam to pass yet will allow ofy condensation passing as 1t accumulates and` thereby insure a vacuum in the return and vacuum pump at all times, and, therefore, an absolutely noiseless heating system.

A further object is to dispense with the use of cold water for condensing, insure a perfect vacuum through the entire system and consequently a uniformheat.

Still further objects are to make the de vice simple, self adjusting, of a minimum number of parts, of a Irlalfiimum capacity, easy of access and automaticin its operation.

To effect these objects Ihave constructed my valve with a main receptacleor casing provided with a suitable vconnection at the side to the return of the radiator, and a suitable discharge at the bottom', a valve proper providedwith a hollow stem fitting in the` vertical discharge orifice anda hollow open-f bottom cap for the hollow stem having a minute central oriiice inthe center of the iioat and stem and radial orifices in the stem below the bottom edge of the top, the said valve operating as hereinafter more particularly explained. Y y

Figure 1, is a sectionalview` of my im.- proved vacuum valve.` tive detail of the valve. v i

In the drawings like letters of reference indicate corresponding partsin each figure.

A is the main body or casing of the valve having its bottom fiat so as to vprovide a valve seat. Y i

B is the connection to the return pipe of the radiator or the like, which extends from the upper end of the valve casing as indicated. y y I C is a screw cap located at the top of the casing. .i

`D is the hollow depending stem forming part of the casing.

Fig. 2, is a perspec-V `E is the valve comprising the central tube E land the float E2 attached to or forming part 4ofthe central tube and being rounded as indicated and extending downwardly in a cylindrical form and adapted to engage the 'said seat. y The cap E isopen at the bottom as indicated.

F isa central orifice located above the center of the tube in the top E and G is a series of holes made in the tube E beneath the level of the bottom edge of the float E and the seat A on which it` rests.

The operation of my valve is as follows. A vacuum is maintained in the valve casing A continually by means of the usual vacuum pump, which is connected in the usual manner to the discharge stem D of the casing, by reason of the oriiice F in the top E2. As soon as any condensation from the radiator orthe like passes by the return B into the valve-casing it will How down the sides of the float and when sufficient is accumulated will raise the valve E, the air under the hollow cap being suiiicient to form a float. As soon as the holes G rise to the level of the seat of the valve the Water accumulated asses down through the holes into the stem F and the` valve resumes its seat. It will thus be seen that the action of my valve will be continuous and will be necessarily noiseless all water accumulating being discharged jecting down into the hollow stem and mak-' ing a close fit therewith and having openings therein normally below the valve seat, and a dome shaped lioat connected to the ltop of the' tube and having an opening therein putting the tube in communication With the casing, the lower edge of said iloat being flat and adapted to engage With the seat said depending tube and dome being so connected as to prevent the passage of air from the dome to the tube.

NICHOLAS DOLESE.

` Witnesses:

B. BOYD, R. GOBAIN. 

